<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }
        
        span {
            margin-top: 100px;
            padding-top: 50px;
            border: 1px solid red;
        }
    </style>
</head>

<body>
    <p class="box">Lorem, ipsum dolor.</p>
    <p class="box1">Lorem ipsum dolor sit amet.</p>
    <span>这个是span</span>
</body>

</html>